Main •
Ji Sung as Lee Han-young: Judge of the South Chungcheong District Court. •
Tae Won-seok as Seok Jeong-ho: Han Young's best supporter and friend. •
Baek Jin-hee as Song Na-yeon: A reporter with a strong sense of justice, working in the legal affairs department of the Daejin Ilbo newspaper. •
Oh Se-young as Yoo Se-hee: Han-young's ex-wife, the youngest daughter of President Yoo Seon-cheol. •
Hwang Hee as Park Chul-woo: A public prosecutor in the Seoul Central District Prosecutor's Office.
Court people •
Kim Tae-woo as Baek Yi-seok: Chief Judge of South Chungcheong District Court. • as Lim Jeong-sik: Criminal judge of Chungcheong District Court.
People around Kang Shin-jin •
Jung Hee-tae as Kim Ji-han: Chief Judge of the Criminal Division of the Seoul Central District Court. • as Kim Yun-hyeok: Judge in Chungcheong District Court. •
Son Byung-ho as Park Kwang-to: Former President.
Haenal Law Firm •
Ahn Nae-sang as Yoo Seon-cheol: President of Haenal Law. •
Hwang Young-hee as Shin Nam-sook • as Choi Jong-hak •
Bae In-hyuk as Kim Sang-jin: serial killer who was sentenced to death by Lee Han-young • as a judge Hwang • as Park Hyeok-jun •
Jang Hee-ryung as Kim Ga-yeong • as Heo Dong-ki • as Woo Kyo-hun • as Lee Chang-hyo ==Production==